The tactile switch is a pin substrate. The pin substrate of the touch switch is brass or phosphor copper (lower grade is iron).

In order to reduce contact resistance, the pins are basically silver plated, and SO2 gas in the air will oxidize, directly affecting the soldering and contact resistance of the switch. Therefore, high-quality tactile switches first need to control the silver plating thickness and silver plating process of the pin substrate.

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The types of tactile switches are as follows:

Standard type, sealed type, SMD type, waterproof type, swing rod type, long type, vertical type, semi-circular array thin type, etc. Depending on the type, the price is around 10-30 yuan. In addition, stamping technology is a key factor in determining the lifespan of shrapnel. Previously, stamping technology from Japan and Taiwan was very popular in China. Therefore, with technological improvements, will the requirements for material imports be reduced.